Hi there folks,
I proudly own a Linksys WRT1200AC which reportedly is equipped with 128MB Flash.
When I check on my system I get the following info:
root@OpenWrt:~# cat /proc/mtd
dev: size erasesize name
mtd0: 00200000 00020000 "u-boot"
mtd1: 00040000 00020000 "u_env"
mtd2: 00040000 00020000 "s_env"
mtd3: 00100000 00020000 "devinfo"
mtd4: 02800000 00020000 "kernel1"
mtd5: 02200000 00020000 "rootfs1"
mtd6: 02800000 00020000 "kernel2"
mtd7: 02200000 00020000 "ubi"
mtd8: 02600000 00020000 "syscfg"
mtd9: 00680000 00020000 "unused_area"
Which of these mtds can I use to increase available space under '/' and how can this be done?
root@OpenWrt:~# df -h
Filesystem Size Used Available Use% Mounted on
rootfs 21.3M 15.6M 4.6M 77% /
/dev/root 5.0M 5.0M 0 100% /rom
tmpfs 251.6M 852.0K 250.8M 0% /tmp
/dev/ubi0_1 21.3M 15.6M 4.6M 77% /overlay
overlayfs:/overlay 21.3M 15.6M 4.6M 77% /
ubi1:syscfg 29.6M 264.0K 27.8M 1% /tmp/syscfg
tmpfs 512.0K 0 512.0K 0% /dev
/dev/sda1 54.9G 16.1G 36.0G 31% /mnt
As far as flash is concerned I can see that there is about 22M total for '/' and about 30M mounted under '/tmp/syscfg'.
What is the idea to have so much disk space under /tmp/syscfg? I'd rather have a larger '/' to get more disk space for my base system.
In addition I see some /overlay which I haven't seen yet apart from systems using extroot.
So I guess with reserved blocks for kernel and uboot this sums up in total to the mentioned 128M...
Is there a way to rearrange my setup in a simple way to obtain more disk space under '/'? I know I could use my external SSD but it is kinda hotplugged and I'd like to keep it optional for my router software setup.
thanks in advance for your tips and hints
Edit: maybe I've posted this in the wrong section - moderators, please feel free to move the topic to where it's most appropriate...
UPDATE: still no idea how to do it manually. However I found trondas builds and they offer much more packages and free space than the official ones - https://forum.openwrt.org/viewtopic.php?id=50914
(Last edited by caetydid on 17 Jan 2016, 23:37)